Morgan,Michael D. Environmental science: managing biological and physical resources by Michael D. Morgan, Joseph M. Moran and James H. Wiersma - Dubuque,Lowa-Melbourne Wm.C.Brown Publishers c1993 - xxxii,480p.; ill,; 26cm. ISBN: 0697163059 Subjects--Topical Terms: Environmental science Ecology Environmental economics Environmental management Dewey Class. No.: 333.7 / MOR